import java.util.Scanner;

public class Main1670 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int a=sc.nextInt();
        if (a>=8&&a<=10){
            System.out.println("ertongzu");
        }else if (a>=11&&a<=14){
            System.out.println("shaonianzu");
        }else if (a>=15&&a<=30){
            System.out.println("qingnianzu");
        }
    }
}
